Zombies are corpses brought back to unlife by various ways depending on the text. Zombies fall under two groups those caused by a virus or bacteria that causes the infected person to die then come back as an animated person with a craving for flesh. These type of Zombies are seen in computer games like Resident Evil, and in most zombie films. The other type of Zombies are those that are raised by evil magic. This usually involves a necromancer or some other spell caster. Voodoo magic is also associated with Zombies. There have been reported cases of Zombies wandering around on the streets due to Voodoo magic.